ASICS Men's GEL-Kahana 4 Running Shoe 100% Mesh and synthetic Rubber sole Contains reflective materials designed to enhance visibility during low light hours Removable Sockliner accomodates orthotics DuoMax Support System enhances support and stability, positioned sport specifically Trusstic System reduces the weight of the sole unit while retaining the structural integrity of the shoe Trail Specific Outsole provides uphill and downhill traction on all types of terrain